Device for recovering waste heat from flue gases



FIG. 1 is a perspective view of a device for recovering waste heat from flue gases showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a side view thereof, with the opposite side view being a mirror image thereof; and,

FIG. 5 is a top view thereof, with the bottom view being a mirror image thereof.

The broken lines depict portions of the device for recovering waste heat from flue gases which form no part of the claimed design. 

The ornamental design for a device for recovering waste heat from flue gases, as shown and described. 